<div class="scratch-body">
  <div id="scratch-cards" data-controller="scratch-cards" data-scratch-cards-oid="<%= @oid %>" data-scratch-cards-uid="<%= @uid %>" data-scratch-cards-sid="0" data-scratch-cards-scratched="false">
    <div id="scratch_result">恭喜您中奖了</div>
    <canvas id="scratch"></canvas>
  </div>
</div>